I’m new to piano and experiencing soreness in the wrist and forearm of my right hand when I play. I can’t tell whether this is “building new muscles” pain or “doing something wrong” pain.
I’m generally fine playing major triads with the 1–3–5 shape. I have more trouble with 1–4–5 chords like D7/F♯ (F♯4 C5 D5) or wider 1–3–5 chords like C/G (G4 C5 E5). I also have more trouble with chords directly in front of me like the C major triad rooted at middle C. That one is tough for me to play with either hand, but the right hand is worse.
I think the main problem here is that I’m flexing my wrist outward too far for comfort (too much ulnar flexion), and I don’t know what I need to do differently. I rarely find this in my left hand, and I don’t know whether that’s because my left hand technique/position is better, or whether it’s simply stronger and more flexible from playing bass – plus I’m left-handed.
Do I need to do something different, or do I just need to build more strength?